Lawn mower sharpener



April! 3(0), 193.. A. LICHT LAWN MOWER SHARPENER Filed Feb. 24. 1934 Patented Apr. 30, 1935' I UNITED STATES PATENT OFFICE- i V V 1,999,635

y if LAWN MoWER SHARPENER -Arthur Lioht, Fulton, s. Dak. Application February '24, 1934, Serial No. 712,838, p acie ms. (01; 76-821) This invention relates :to a lawn mower sharpmembers i in a major portion of its length I ener, and it is an object of the: invention to prop v h an el a ed S ot a d between videa deviceof this kind which is intended to the member 2 and the adjacent end of the slot be mounted upon thezt'ierod of, a lawn mower 4 said member I has an open 5 e ndis- 5 and which includes mountings for a file for coacclosed as in alismnent with the shit 4. 5

ti t th blades' of t mower, An elongated clamping member 6 is adapted to Another object of the invention isto provide rest from above upon each of the members i and a device of this kind comprising mountings of this me e 5 is o p v d d throughout a a character whereby the fileis held in what may v.lOr portion of its length with an elongated slot 7 be termed 'a solid frame,,together with means dapted to register with the slot 4 of the assoll whereby the desired adjustments may be easily ciated member 1. The plate or member 3 in adand readily 'made to assure the proper place- Vance of the slot! is provided with an opening 8 ment of the file with respect to thebladesoi the r is rin with he pen n 5 n he associated mow r, H i i h member I so that a headed member 9 may be in- The invention consists in theadetails of .con- 'Se ed from ow through Said registering, slots :5 struction andin the combination and arrange- 0r openings ,5 and 8. Theshank of the member ment of the several parts of my improved lawn 9 is adapted to have threaded thereon a clampmower sharpener whereby certain important ading nut l0 whereby the forward end portions of vantages are attained and the device. rendered the associated members I and 5 may be effectivesimpler, less expensive and otherwise more cony-held in applied position and also to hold the so venient and advantageous for use, as will be forward end portion of the member 5 in desired hereinafter more fully set forth. clamping engagement with the applied file F. To The novel features of my invention will hereassure this engagement of the member 6 with inafter be definitely claimed. the file F it is to be noted in the accompanying In order that my invention may be the better drawing that the member 6 is of a length to have 2.

understood, I will now proceed to describe the its forward end portion extend beyond the outer same with reference to the accompanying drawface of the member 2 to provide a jaw opposed ing, wherein: a to the flange or lip 3 hereinbefore referred to.

Figure 1 is a fragmentary View in perspective This extended portion of the member s preferof a lawn mower showing applied thereto a ably has its under surface roughened or serrated, 30 sharpener device constructed in accordance with. as indicated at H in Figure 2, to assure an eifecan embodiment of my invention; tive gripping action upon the file F and. particu- Figure 2 is a view in end elevation of the larly to eliminate the liability of the file F slipa device as illustrated in Figure 1 with the assoping or turning out of position.

ciated connecting or tie bar or rod in section; Disposed through the registering slots i and 35 Figure 3 is a fragmentary view in top plan of l of each pair of associated members i and 5 the main or body member of the device; from below is a headed shank l2 which is also Figure 4 is a view in front elevation of the freely directed through an outstanding flat arm main or body member as illustrated in Figure 1. I4 extending from an end portion of a substan- 40 As disclosed in the accompanying drawing, my tially U-shaped jaw 15 for contact from below 40 improved sharpener device comprises a main or with the connecting or tie bar or rod 56 of the body member M consisting of two elongated lawn mower structure. The upper portion of members arranged in parallelism and spaced this headed member I 2 has threaded thereon a apart a desired distance. These members i are holding nut [1 whereby the member i is effechat and have their forward ends formed with tively held upon thebar or rod 46 and at the the upper marginal portion of the extremities of same time holding the jaw [5 in a selected posi- 7 an elongated fiat member 2 of a length dependtion with respect to the member l as determined ent upon the distance it is desired to space the by the required placement of the file F with remembers I. Each end portion of the member 2 spect to the blades of the mower to be sharpened 50 directly below the adjacent end of a member I by the device. 50 has its lower marginal portion provided with a As illustrated in Figure 2, the working face of forwardly directed lip or flange 3 constituting a each of the jaws I5 is toothed or roughened, as shoulder or jaw upon which is adapted to directindicated at I8, to assure the most effective en- 1y engage the longitudinal edge of an elongated gagement of the jaw l5 with the bar or rod I6.

file F or kindred cutting member. Each of the It is believed to be apparent from the fore- 55 going that in the complete assembly of thedevice the file or cutting member F is held in what might be termed a solid frame and this is of advantage as it facilitates the application of the device in working position. It is believed to be obvious that in applying the device in working position it is only required to tighten the nut I! to bring the jaws l5 into desired clamping engagement with the bar or rod. I6.

From the foregoing description it is thought to be obvious that a lawn 'mower sharpener constructed in accordance with my invention is particularly well adapted for use by reason of the; convenience and facility with which it may be assembled and operated, and it will also be obvi-- ous that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying'out my invention in practice except as hereinafter claimed. a a

I claim:- r a 1. A lawn mower sharpener comprising an elongated and substantially flat member; a' pair of substantially parallel members carried by the first named member-at points spaced lengthwise of the first named member and substantially at right angles thereto, said second members being arranged at a longitudinal marginal portion of the first member, fixed jaws carried by the first member and disposed in a direction opposite to the second named members, said fixed jaws being at the opposite longitudinal marginal portion of the first member, clamping jawscarriedjby the second members for coaction with the first named jaws to hold a sharpening element in overlying position with respect to the elongated member, and means carried by the second members and coacting therewith for securing said second members to a support, said last named means being selectively adjustable lengthwise of the second members.

2. A device of the class described comprising an elongated fiat member, a pair of members engaged with a marginal portionof theifirst mem her and extending rearwardly therefrom, said members having slots substantially in parallel, additional members overlying the second named members; means for securing said last named members to the second named members with an end portion of a the last named members disposed beyond the outer face of the first member to permit said last named members to act asjaws, said last named membershaving slots registering with the slots of the second named members, jaws carried by the first member and extending beyond the outer face thereof, said last named jaws being substantially in alignment transversely of the first member 'with the jaws afforded by the projected end'portions of the last namedmembers, clamping members coacting with the inner faces of the second named members, and means coacting with the clamping members and with the last named members and disposed through 

